MBRP's 4" Exhaust Systems provide a nice balance of sound with an aggressive tone under load and acceleration without being too loud for towing or longer drives. These systems are complete all the way from the downpipe back and include everything needed for a clean and simple installation.
Aluminized VS Stainless
These exhaust systems are available both in the standard aluminized steel as well as the upgraded 409 stainless material. The Aluminized is a great cost effective option for those in dryer climates that do not experience extreme weather or heavily salted roads where the stainless option provides a bit more durability for those in harsher conditions.
MBRP's Muffler
MBRP's muffler's feature a straight through design with virtually no restriction allowing a slight reduction in overall noise/drone without any loss of performance. We generally recommend these for those that are frequently towing or spend a lot of time on the highway.
Fitment Note:
These kits are designed to work with all extended and crew cab trucks including short and long bed configurations. This is accomplished by including an extra pipe that will either be trimmed or left out depending on your application.
Features & Benefits:
- Nice & Aggressive Tone
- Full Mandrel Bent Piping
- Simple Bolt On Installation
- 1 Year Warranty For Aluminized
- 5 Year Warranty For Stainless
- Fits All 01-07 Extended & Crew Cab Duramax Pickups
